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Finding the Fourth Proportional to 13,662.45, 20,485.26 and 5,332.77

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Solution

The fourth proportional to 13,662.45, 20,485.26 and 5,332.77 is: 7,995.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,662.45 : 20,485.26 = 5,332.77 : x
  2. Step 2: Convert to fraction form
    13,662.45/20,485.26 = 5,332.77/x
  3. Step 3: Cross multiply
    13,662.45x = 20,485.26 × 5,332.77
  4. Step 4: Simplify right side
    13,662.45x = 109,243,179.97
  5. Step 5: Solve for x
    x = 109,243,179.97/13,662.45
  6. Step 6: Final answer
    x = 7,995.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.